Cultivator



(No Model.)

T. O. BAKER.

GULTIVATOR.

Patented Sept. 1, 1885.

5 E 5 H m W UNITED STATES ATENT rricn.

THOMAS BAKER, OF ASHLAND, MISSOURI.

CULTIVATOR.

CJPECIPICATIOH forming part of Letters Patent No. 325,477, dated September 1, 1885.

Application filed May 12, 18:5. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS C. BAKER, a citizen of the United States, residing at Ashlaud, in the county of Boone and State of Missouri, have invented certain new and useful Improvements in Cultivators; and Ido declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to maize and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in cultivators; and it has for its object to produce a simple construction of cultivator and combine therewith a novel steering device, which at the same time shall perform the office of a cultivator tooth, a further object being to combine with said cultivator an adjusting device to regulate the depth of cultivation and attaching the same directly to the steering arrangement or to the cultivator-frame at pleasure, as may be found more advantageous. These objects I attain by the construction, arrangement, and combination of parts, as more fully hereinafter set forth and claimed, and illustrated in the accompanying drawings, in which- Figure 1 represents a plan view of the 1nachine. Fig. 2 is a sect-ion of the same on the line a: Fig. 3 is a section on lineg y. Fig. 4 is a front elevation. Fig. 5 is a modification in which the steering and adjusting devices are carried by a single standard. Fig. 6 is a modified form of the steerer.

The beam A is provided with a tongue or pole, B, and a series of standards, 0, which are set at equal distances apart. These standards are vertically slotted at their lower ends in a direction parallel to the draft of the machine, and teeth D, seated within these slots, are secured in place by pins (2 cl, one of which is metal and the other wo0d,to permit the yielding or giving away of the tooth when contactin g with a foreign or unyielding obstacle by the breaking of the wooden pin, thus preventing injury to the general structure of the machine. These standards maybe set in mortises in the beam or secured thereto in any well-known manner; but the construction shown is preferable, as by having the upper ends of the standards threaded and screwed into the beam and held fast by jam-nuts they may be easily removed and adjusted at pleasure.

Guides E, working in guide-plates F F, secured, respectively, to the under and upper sides of the beam A, are provided at their lower ends with a gagewheel, E, and are moved vertically to regulate the depth at which the teeth may enter the soil by a lever, G, pivoted to their upper ends. As this pivoted point is movable in a vertical plane only it is necessary that the fulcrum of the levershould be shifting, and to this end the guide-plate F is extended forward to form the arm I), on the under side of which runs an anti-friction roller, 9, connected by links to the end of the lever G. The end of the arm 6 is bent downward to prevent the accidental displacement of the roller. Thclinks may be adj ustably connected either to the roller or to the lever, thereby regulating the movement of the lever and the guide E.

To hold the gagc-wheel in an adjusted position, a springpawl, G, depending from the lever G, engages the under side of the rear end of the plate F, or one of a series of ratchetteeth formed therewith, as indicated in dotted lines, Fig. 2. The spring-pawl is operated by a bell-crank lever, H, having its short arm pivoted to the lever G near its rear end or handle, the bell-crank and pawl being connected by a rod, h.

To guide the cultivator in and out and cause it to follow the sinuosities of the rows of grain, a pair of the standards, 0, one near each end of the beam, is loosely orswivel mounted therein so as to turn freely, and the teeth are replaced by a wheel or runner, G or the one may be provided with a wheel and the other with a runner, C. This has been found to give the best results, as the wheel, which is generally sharp,cuts deep into the soil and prevents any sidewise movement,while the runner, having alonger bearing-contact with the ground, is better adapted for steering. The upper ends of these standards are provided with handles or levers l,which are united with rods J, curving or branching outwardly and upward from I near the lower end of the standards. These rods J project upwardly beyond their j auction with the levers I, and are pivotally connected at their extremities to a cross-piece, J, by which both the steeringstandards are simultaneously operated.

Fig. 5 shows a modification in which a single bar-lever is attached to the steering-standard, and carries a gage-wheel, thus enabling the cultivator to be gaged and steered at one and the same operation; but the construction heretofore described is the one preferred, as it gives better results and is more easilyhandled and operated.

By reference to the figures, especially Fig. 4, it will be seen that the gage-wheel has a waveline cutting-edge, which is the most preferred form, as its action is more positive, although a single fiat disk may be profitably employed.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. The combination, with a cultivator provided with a gage-guide working in vertical guides, of an arm-extension, a lever pivoted to the gage-guide, a roller running on the armextension, and links connecting the roller and lever, as and for the purposes described.

2. In a cultivator provided with a gageguide working vertically in bearings, the

combination of a lever pivoted to the gageguide and provided with a shifting fulcrum, a spring-pawl connected to the lever and engaging a ratchetsurface attached to the frame of the cultivator, and a bell-crank and connecting-rod for actuating said pawl, substantially as set forth.

3. The combination, in a cultivator, of a pair of swivel-mounted standards connected by rods branching therefrom, the latter united by a cross-rod pivotally attached to each,with a cultivator disk vjournaled in one of said standards, and a runner attached to the other, substantially as and for the purposes described.

In testimony whereof I affix my signaturein presence of two witnesses.

THOS. G. BAKER.

Witnesses:

ELI PENTER, W. G. SAPP. 

